[css-text-3] Make a computed 'letter-spacing' value of zero return a resolved value of 'normal' because WebKit engineers. <https://lists.w3.org/Archives/Public/www-style/2018Mar/0040.html> Fixes w3c#1484.

Author: fantasai

css-text-3/Overview.bs

@@ -1759,6 +1759,11 @@ Word Spacing: the 'word-spacing' property</h3>
         Values may be negative, but there may be implementation-dependent limits.
   </dl>
 
+  <p>For <a href="https://github.com/w3c/csswg-drafts/issues/1484">legacy reasons</a>,
+  a computed 'letter-spacing' of zero
+  yields a <a>resolved value</a> (<code>getComputedStyle()</code> return value)
+  of ''letter-spacing/normal''.
+
     <p>For the purpose of 'letter-spacing', each consecutive run of atomic
       inlines (such as images and inline blocks) is treated as a single
       <a>typographic character unit</a>.

css-text-3/issues-lc-2013.html

@@ -1319,12 +1319,14 @@ <h1>CSS Text Level 3 Disposition of Comments for 2013-10-10 LCWD</h1>
 <span>Response: <a href='https://github.com/w3c/csswg-drafts/issues/1256#issuecomment-318221552'>https://github.com/w3c/csswg-drafts/issues/1256#issuecomment-318221552</a></span>
 <span class="a">Closed:   Accepted</span>
 <span>Resolved: Editorial</span></pre>
-<pre class='open ' id='issue-151'>
+<pre class=' a' id='issue-151'>
 <span>Issue 151. <a href='#issue-151'>#</a></span>
 <span>Summary:  letter-spacing: normal computed value should be normal</span>
 <span>From:     nox</span>
 <span>Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/1484'>https://github.com/w3c/csswg-drafts/issues/1484</a></span>
-<span>Open</span></pre>
+<span>Response: <a href='https://github.com/w3c/csswg-drafts/issues/1484#issuecomment-375015770'>https://github.com/w3c/csswg-drafts/issues/1484#issuecomment-375015770</a></span>
+<span class="a">Closed:   Accepted</span>
+<span>Resolved: <a href='https://lists.w3.org/Archives/Public/www-style/2018Mar/0040.html'>https://lists.w3.org/Archives/Public/www-style/2018Mar/0040.html</a> <a href="https://www.w3.org/Mail/flatten/index?subject=https%3A%2F%2Flists.w3.org%2FArchives%2FPublic%2Fwww-style/2018Mar/0040.html"><abbr title="Thread">&#x2208;</abbr></a></span></pre>
 <pre class='open ' id='issue-152'>
 <span>Issue 152. <a href='#issue-152'>#</a></span>
 <span>Summary:  letter-spacing after bidi</span>
@@ -1473,6 +1475,7 @@ <h1>CSS Text Level 3 Disposition of Comments for 2013-10-10 LCWD</h1>
 <span>Summary:  Typo in Thai word-break example</span>
 <span>From:     Richard Ishida</span>
 <span>Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/2455'>https://github.com/w3c/csswg-drafts/issues/2455</a></span>
+<span>Response: <a href='https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375477036'>https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375477036</a></span>
 <span class="a">Closed:   Accepted</span>
 <span>Resolved: Editorial</span></pre>
 <pre class='open ' id='issue-174'>
@@ -1491,6 +1494,7 @@ <h1>CSS Text Level 3 Disposition of Comments for 2013-10-10 LCWD</h1>
 <span>Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375155972'>https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375155972</a></span>
 <span>Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375151681'>https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375151681</a></span>
 <span>Response: <a href='https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375162188'>https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375162188</a></span>
+<span>Response: <a href='https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375477036'>https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375477036</a></span>
 <span class="a">Open:     Accepted =WG= Review.</span></pre>
 <script>
 (function () {

css-text-3/issues-lc-2013.txt

@@ -1292,7 +1292,9 @@ Issue 151.
 Summary:  letter-spacing: normal computed value should be normal
 From:     nox
 Comment:  https://github.com/w3c/csswg-drafts/issues/1484
-Open
+Response: https://github.com/w3c/csswg-drafts/issues/1484#issuecomment-375015770
+Closed:   Accepted
+Resolved: https://lists.w3.org/Archives/Public/www-style/2018Mar/0040.html
 ----
 Issue 152.
 Summary:  letter-spacing after bidi
@@ -1441,6 +1443,7 @@ Issue 173.
 Summary:  Typo in Thai word-break example
 From:     Richard Ishida
 Comment:  https://github.com/w3c/csswg-drafts/issues/2455
+Response: https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375477036
 Closed:   Accepted
 Resolved: Editorial
 ----
@@ -1459,5 +1462,6 @@ From:     Florian Rivoal, James Clark
 Comment:  https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375155972
 Comment:  https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375151681
 Response: https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375162188
+Response: https://github.com/w3c/csswg-drafts/issues/2455#issuecomment-375477036
 Open:     Accepted =WG= Review.
 ----